Annotation of parser3/src/main/pa_http.C, revision 1.118
1.1 paf 1: /** @file
2: Parser: http support functions.
3:
1.109 moko 4: Copyright (c) 2001-2020 Art. Lebedev Studio (http://www.artlebedev.com)
1.1 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
6: */
7:
8: #include "pa_http.h"
9: #include "pa_common.h"
1.81 moko 10: #include "pa_base64.h"
1.1 paf 11: #include "pa_charsets.h"
12: #include "pa_request_charsets.h"
1.22 misha 13: #include "pa_request.h"
14: #include "pa_vfile.h"
15: #include "pa_random.h"
1.1 paf 16:
1.118 ! moko 17: volatile const char * IDENT_PA_HTTP_C="$Id: pa_http.C,v 1.117 2021/01/02 23:01:11 moko Exp $" IDENT_PA_HTTP_H;
1.59 moko 18:
19: #ifdef _MSC_VER
20: #include <windows.h>
1.89 moko 21: #define socklen_t int
1.59 moko 22: #else
23: #define closesocket close
24: #endif
1.53 moko 25:
1.1 paf 26: // defines
27:
1.19 misha 28: #define HTTP_METHOD_NAME "method"
29: #define HTTP_FORM_NAME "form"
30: #define HTTP_BODY_NAME "body"
31: #define HTTP_TIMEOUT_NAME "timeout"
32: #define HTTP_HEADERS_NAME "headers"
1.22 misha 33: #define HTTP_FORM_ENCTYPE_NAME "enctype"
1.19 misha 34: #define HTTP_ANY_STATUS_NAME "any-status"
1.59 moko 35: #define HTTP_OMIT_POST_CHARSET_NAME "omit-post-charset" // ^file::load[...;http://...;$.method[post]] by default adds charset to content-type
1.12 misha 36:
1.1 paf 37: #define HTTP_USER "user"
38: #define HTTP_PASSWORD "password"
39:
1.70 moko 40: #define HTTP_USER_AGENT "user-agent"
1.1 paf 41: #define DEFAULT_USER_AGENT "parser3"
42:
1.59 moko 43: #ifndef INADDR_NONE
44: #define INADDR_NONE ((ulong) -1)
45: #endif
1.1 paf 46:
47: #undef CRLF
48: #define CRLF "\r\n"
49:
1.54 misha 50: // helpers
1.56 misha 51:
1.85 moko 52: bool HTTP_Headers::add_header(const char *line){
1.78 moko 53: const char *value=strchr(line, ':');
54:
55: if(value && value != line){ // we need only headers, not the response code
56: Header header(str_upper(line, value-line), String::Body(value+1).trim(String::TRIM_BOTH, " \t\n\r"));
57:
58: if(header.name == String::Body(HTTP_CONTENT_TYPE_UPPER) && content_type.is_empty())
59: content_type=header.value;
60:
61: if(header.name == String::Body("CONTENT-LENGTH") && content_length==0)
1.95 moko 62: ALTER_EXCEPTION_COMMENT(content_length=pa_atoul(header.value.cstr()), " for content-length");
1.78 moko 63:
64: headers+=header;
65:
66: return true;
67: }
68: return false;
69: }
70:
1.54 misha 71: class Cookies_table_template_columns: public ArrayString {
72: public:
73: Cookies_table_template_columns() {
74: *this+=new String("name");
75: *this+=new String("value");
76: *this+=new String("expires");
77: *this+=new String("max-age");
78: *this+=new String("domain");
79: *this+=new String("path");
80: *this+=new String("httponly");
81: *this+=new String("secure");
82: }
83: };
84:
85:
1.1 paf 86: static bool set_addr(struct sockaddr_in *addr, const char* host, const short port){
1.22 misha 87: memset(addr, 0, sizeof(*addr));
88: addr->sin_family=AF_INET;
89: addr->sin_port=htons(port);
90: if(host) {
1.65 moko 91: struct hostent *hostIP=gethostbyname(host);
92: if(hostIP && hostIP->h_addrtype == AF_INET){
93: memcpy(&addr->sin_addr, hostIP->h_addr, hostIP->h_length);
94: return true;
95: }
96: }
97: return false;
1.1 paf 98: }
99:
1.84 moko 100: class HTTP_response : public PA_Allocated {
1.78 moko 101: public:
102: char *buf;
103: size_t length;
104: size_t buf_size;
105: size_t body_offset;
106:
1.85 moko 107: HTTP_Headers headers;
1.78 moko 108:
1.97 moko 109: HTTP_response() : buf(NULL), length(0), buf_size(0), body_offset(0){}
1.78 moko 110:
111: void resize(size_t size){
112: buf_size=size;
113: buf=(char *)pa_realloc(buf, size + 1);
114: }
115:
116: bool read(int sock, size_t size){
1.103 moko 117: if(length + size > buf_size)
118: resize(buf_size * 2 + size);
1.78 moko 119: ssize_t received_size=recv(sock, buf + length, size, 0);
1.103 moko 120: if(received_size == 0)
1.78 moko 121: return false;
1.103 moko 122: if(received_size < 0) {
123: if(int no = pa_socks_errno())
1.102 moko 124: throw Exception("http.timeout", 0, "error receiving response: %s (%d)", pa_socks_strerr(no), no);
1.78 moko 125: return false;
126: }
127: length+=received_size;
128: buf[length]='\0';
129: return true;
130: }
131:
1.83 moko 132: size_t first_line(){
1.89 moko 133: char *header=strchr(buf, '\n');
134: if(!header)
1.78 moko 135: return false;
136:
1.89 moko 137: return header-buf;
1.78 moko 138: }
139:
140: const char *status_code(char *status_line, int &result){
141: char* status_start = strchr(status_line, ' ');
142:
143: if(!(status_start++))
144: return status_line;
145:
146: char* status_end=strchr(status_start, ' ');
147:
148: if(!status_end)
149: return status_line;
150:
151: if(status_end==status_start)
152: return status_line;
1.1 paf 153:
1.78 moko 154: const char *result_str=pa_strdup(status_start, status_end-status_start);
1.95 moko 155: ALTER_EXCEPTION_COMMENT(result=pa_atoui(result_str), " for HTTP status");
1.78 moko 156: return result_str;
157: }
1.2 paf 158:
1.78 moko 159: bool body_start(){
160: char *p=buf;
161: while((p=strchr(p, '\n'))) {
162: if(p[1]=='\r' && p[2]=='\n'){ // \r\n\r\n
163: *p='\0';
164: body_offset=p-buf+3;
165: return true;
166: }
167: if(p[1]=='\n') { // \n\n
168: *p='\0';
169: body_offset=p-buf+2;
170: return true;
171: }
172: p++;
173: }
174: return false;
1.2 paf 175: }
1.78 moko 176:
177: void parse_headers(){
178: const String header_block(buf, String::L_TAINTED);
179:
180: ArrayString aheaders;
181: header_block.split(aheaders, 0, "\n");
182:
183: Array_iterator<const String*> i(aheaders);
184: i.next(); // skipping status
185: for(;i.has_next();){
186: const char *line=i.next()->cstr();
187: if(!headers.add_header(line))
1.97 moko 188: throw Exception("http.response", 0, "bad response from host - bad header \"%s\"", line);
1.78 moko 189: }
1.1 paf 190: }
191:
1.88 moko 192: int read_response(int sock, bool fail_on_status_ne_200);
1.78 moko 193: };
194:
195: enum HTTP_response_state {
196: HTTP_STATUS_CODE,
197: HTTP_HEADERS,
198: HTTP_BODY
199: };
200:
1.88 moko 201: int HTTP_response::read_response(int sock, bool fail_on_status_ne_200) {
1.78 moko 202: HTTP_response_state state=HTTP_STATUS_CODE;
203: int result=0;
204:
205: size_t chunk_size=0x400*16;
1.88 moko 206: resize(2*chunk_size);
1.78 moko 207:
1.88 moko 208: while(read(sock, chunk_size)){
1.78 moko 209: switch(state){
210: case HTTP_STATUS_CODE: {
1.88 moko 211: size_t status_size=first_line();
1.78 moko 212: if(!status_size)
213: break;
214:
1.88 moko 215: const char *status=status_code(pa_strdup(buf, status_size), result);
1.78 moko 216:
217: if(!result || fail_on_status_ne_200 && result!=200)
218: throw Exception("http.status", status ? new String(status) : &String::Empty, "invalid HTTP response status");
219:
220: state=HTTP_HEADERS;
221: }
222:
223: case HTTP_HEADERS: {
1.88 moko 224: if(!body_start())
1.78 moko 225: break;
226:
1.88 moko 227: parse_headers();
1.78 moko 228:
1.97 moko 229: size_t content_length=check_file_size(headers.content_length, 0);
1.88 moko 230: if(content_length>0 && (content_length + body_offset) > length){
231: resize(content_length + body_offset + 0x400*64);
1.78 moko 232: }
233:
234: state=HTTP_BODY;
1.1 paf 235: break;
236: }
1.78 moko 237:
238: case HTTP_BODY: {
239: chunk_size=0x400*64;
1.1 paf 240: break;
241: }
242: }
243: }
1.78 moko 244:
245: if(state==HTTP_STATUS_CODE)
1.97 moko 246: throw Exception("http.response", 0, "bad response from host - no status found (size=%u)", length);
1.78 moko 247:
248: if(state==HTTP_HEADERS){
1.88 moko 249: parse_headers();
250: body_offset=length;
1.1 paf 251: }
1.78 moko 252:
253: return result;
1.1 paf 254: }
255:
256: /* ********************** request *************************** */
257:
258: #if defined(SIGALRM) && defined(HAVE_SIGSETJMP) && defined(HAVE_SIGLONGJMP)
259: # define PA_USE_ALARM
260: #endif
261:
262: #ifdef PA_USE_ALARM
263: static sigjmp_buf timeout_env;
264: static void timeout_handler(int /*sig*/){
1.101 moko 265: siglongjmp(timeout_env, 1);
1.1 paf 266: }
1.118 ! moko 267:
! 268: #define PA_NO_THREADS (HTTPD_Server::mode != HTTPD_Server::MULTITHREADED)
! 269:
! 270: #define ALARM(value) if(PA_NO_THREADS) alarm(value)
1.101 moko 271: #else
272: #define ALARM(value)
1.1 paf 273: #endif
274:
1.78 moko 275: static int http_request(HTTP_response& response, const char* host, short port, const char* request, size_t request_size, int timeout_secs, bool fail_on_status_ne_200) {
1.1 paf 276: if(!host)
1.73 moko 277: throw Exception("http.host", 0, "zero hostname"); //never
1.1 paf 278:
1.101 moko 279: volatile int sock=-1; // to prevent makeing it register variable, because it will be clobbered by longjmp [thanks gcc warning]
280:
1.1 paf 281: #ifdef PA_USE_ALARM
1.118 ! moko 282: if(PA_NO_THREADS) signal(SIGALRM, timeout_handler);
! 283: if(PA_NO_THREADS && sigsetjmp(timeout_env, 1)) {
1.101 moko 284: // duplicating closesocket to make code more simple for old compilers
285: if(sock>=0)
286: closesocket(sock);
287: throw Exception("http.timeout", 0, "timeout occurred while retrieving document");
1.1 paf 288: return 0; // never
1.101 moko 289: } else
1.1 paf 290: #endif
1.101 moko 291: {
292: ALARM(timeout_secs);
1.1 paf 293: try {
294: int result;
295: struct sockaddr_in dest;
296:
297: if(!set_addr(&dest, host, port))
1.73 moko 298: throw Exception("http.host", 0, "can not resolve hostname \"%s\"", host);
1.1 paf 299:
300: if((sock=socket(AF_INET, SOCK_STREAM, IPPROTO_TCP/*0*/))<0) {
301: int no=pa_socks_errno();
1.73 moko 302: throw Exception("http.connect", 0, "can not make socket: %s (%d)", pa_socks_strerr(no), no);
1.1 paf 303: }
304:
305: // To enable SO_DONTLINGER (that is, disable SO_LINGER)
306: // l_onoff should be set to zero and setsockopt should be called
307: linger dont_linger={0,0};
308: setsockopt(sock, SOL_SOCKET, SO_LINGER, (const char *)&dont_linger, sizeof(dont_linger));
309:
310: #ifdef WIN32
311: // SO_*TIMEO can be defined in .h but not implemlemented in protocol,
312: // failing subsequently with Option not supported by protocol (99) message
313: // could not suppress that, so leaving this only for win32
314: int timeout_ms=timeout_secs*1000;
315: setsockopt(sock, SOL_SOCKET, SO_SNDTIMEO, (const char*)&timeout_ms, sizeof(timeout_ms));
316: setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (const char*)&timeout_ms, sizeof(timeout_ms));
317: #endif
318:
319: if(connect(sock, (struct sockaddr *)&dest, sizeof(dest))) {
320: int no=pa_socks_errno();
1.78 moko 321: throw Exception("http.connect", 0, "can not connect to host \"%s\": %s (%d)", host, pa_socks_strerr(no), no);
1.1 paf 322: }
1.22 misha 323:
1.1 paf 324: if(send(sock, request, request_size, 0)!=(ssize_t)request_size) {
325: int no=pa_socks_errno();
1.78 moko 326: throw Exception("http.timeout", 0, "error sending request: %s (%d)", pa_socks_strerr(no), no);
1.1 paf 327: }
328:
1.88 moko 329: result=response.read_response(sock, fail_on_status_ne_200);
1.78 moko 330: closesocket(sock);
1.101 moko 331: ALARM(0);
1.1 paf 332: return result;
333: } catch(...) {
1.101 moko 334: ALARM(0);
1.78 moko 335: if(sock>=0)
336: closesocket(sock);
1.1 paf 337: rethrow;
338: }
339: }
340: }
341:
342: #ifndef DOXYGEN
343: struct Http_pass_header_info {
344: Request_charsets* charsets;
345: String* request;
1.35 misha 346: bool* user_agent_specified;
347: bool* content_type_specified;
348: bool* content_type_url_encoded;
1.1 paf 349: };
350: #endif
1.50 moko 351:
352: char *pa_http_safe_header_name(const char *name) {
353: char *result=pa_strdup(name);
354: char *n=result;
1.52 misha 355: if(!pa_isalpha((unsigned char)*n))
1.50 moko 356: *n++ = '_';
357: for(; *n; ++n) {
1.52 misha 358: if (!pa_isalnum((unsigned char)*n) && *n != '-' && *n != '_')
1.50 moko 359: *n = '_';
360: }
361: return result;
362: }
363:
1.101 moko 364: static void http_pass_header(HashStringValue::key_type aname, HashStringValue::value_type avalue, Http_pass_header_info *info) {
1.9 misha 365:
1.41 misha 366: const char* name_cstr=aname.cstr();
367:
1.38 misha 368: if(strcasecmp(name_cstr, HTTP_CONTENT_LENGTH)==0)
369: return;
370:
1.50 moko 371: String name=String(pa_http_safe_header_name(capitalize(name_cstr)), String::L_AS_IS);
372: String value=attributed_meaning_to_string(*avalue, String::L_HTTP_HEADER, true);
1.9 misha 373:
1.35 misha 374: *info->request << name << ": " << value << CRLF;
1.1 paf 375:
1.38 misha 376: if(strcasecmp(name_cstr, HTTP_USER_AGENT)==0)
1.35 misha 377: *info->user_agent_specified=true;
1.38 misha 378: if(strcasecmp(name_cstr, HTTP_CONTENT_TYPE)==0){
1.35 misha 379: *info->content_type_specified=true;
1.62 moko 380: *info->content_type_url_encoded=pa_strncasecmp(value.cstr(), HTTP_CONTENT_TYPE_FORM_URLENCODED)==0;
1.35 misha 381: }
1.1 paf 382: }
383:
1.10 misha 384: static void http_pass_cookie(HashStringValue::key_type name,
1.20 misha 385: HashStringValue::value_type value,
386: Http_pass_header_info *info) {
1.10 misha 387:
1.17 misha 388: *info->request << String(name, String::L_HTTP_COOKIE) << "="
1.31 misha 389: << attributed_meaning_to_string(*value, String::L_HTTP_COOKIE, true)
1.10 misha 390: << "; ";
391:
392: }
1.1 paf 393:
394: static const String* basic_authorization_field(const char* user, const char* pass) {
395: if(!user&& !pass)
396: return 0;
397:
398: String combined;
399: if(user)
400: combined<<user;
401: combined<<":";
402: if(pass)
403: combined<<pass;
404:
1.20 misha 405: String* result=new String("Basic ");
1.82 moko 406: *result<<pa_base64_encode(combined.cstr(), combined.length(), Base64Options(false /*no wrap*/));
1.1 paf 407: return result;
408: }
409:
1.73 moko 410: static void form_string_value2string(HashStringValue::key_type key, const String& value, String& result) {
1.30 misha 411: result << String(key, String::L_URI) << "=" << String(value, String::L_URI) << "&";
1.1 paf 412: }
1.20 misha 413:
1.1 paf 414: #ifndef DOXYGEN
415: struct Form_table_value2string_info {
416: HashStringValue::key_type key;
417: String& result;
418:
419: Form_table_value2string_info(HashStringValue::key_type akey, String& aresult):
420: key(akey), result(aresult) {}
421: };
422: #endif
423: static void form_table_value2string(Table::element_type row, Form_table_value2string_info* info) {
424: form_string_value2string(info->key, *row->get(0), info->result);
425: }
1.73 moko 426:
427: static void form_value2string(HashStringValue::key_type key, HashStringValue::value_type value, String* result) {
1.1 paf 428: if(const String* svalue=value->get_string())
429: form_string_value2string(key, *svalue, *result);
430: else if(Table* tvalue=value->get_table()) {
431: Form_table_value2string_info info(key, *result);
432: tvalue->for_each(form_table_value2string, &info);
433: } else
1.73 moko 434: throw Exception(PARSER_RUNTIME, new String(key, String::L_TAINTED),
1.63 moko 435: "is %s, " HTTP_FORM_NAME " option value can be string or table only (file is allowed for $." HTTP_METHOD_NAME "[POST] + $." HTTP_FORM_ENCTYPE_NAME "[" HTTP_CONTENT_TYPE_MULTIPART_FORMDATA "])", value->type());
1.1 paf 436: }
1.20 misha 437:
1.5 misha 438: const char* pa_form2string(HashStringValue& form, Request_charsets& charsets) {
1.1 paf 439: String string;
1.3 paf 440: form.for_each<String*>(form_value2string, &string);
1.44 misha 441: return string.untaint_and_transcode_cstr(String::L_URI, &charsets);
1.1 paf 442: }
1.22 misha 443:
444: struct FormPart {
445: Request* r;
446: const char* boundary;
1.48 moko 447: String* string;
1.22 misha 448: Form_table_value2string_info* info;
1.48 moko 449:
450: struct BinaryBlock{
451: const char* ptr;
452: size_t length;
453:
454: BinaryBlock(String* astring, Request* r): ptr(astring->untaint_and_transcode_cstr(String::L_AS_IS, &r->charsets)), length(strlen(ptr)){}
455: BinaryBlock(const char* aptr, size_t alength): ptr(aptr), length(alength){}
456: };
457:
458: Array<BinaryBlock> blocks;
459:
460: FormPart(Request* ar, const char* aboundary): r(ar), boundary(aboundary), string(new String()){}
461:
462: const char *post(size_t &length){
463: if(blocks.count()){
464: blocks+=BinaryBlock(string, r);
465:
466: length=0;
467: for(size_t i=0; i<blocks.count(); i++)
468: length+=blocks[i].length;
469:
470: char *result=(char *)pa_malloc_atomic(length);
471: char *ptr=result;
472:
473: for(size_t i=0; i<blocks.count(); i++){
474: memcpy(ptr, blocks[i].ptr, blocks[i].length);
475: ptr+=blocks[i].length;
476: }
477:
478: return result;
479: } else {
480: BinaryBlock result(string, r);
481: length=result.length;
482: return result.ptr;
483: }
484: }
1.22 misha 485: };
486:
1.73 moko 487: static void form_part_boundary_header(FormPart& part, String::Body name, const char* file_name=0) {
488: *part.string << "--" << part.boundary << CRLF CONTENT_DISPOSITION_CAPITALIZED ": form-data; name=\"" << name << "\"";
1.22 misha 489: if(file_name){
490: if(strcmp(file_name, NONAME_DAT)!=0)
1.48 moko 491: *part.string << "; filename=\"" << file_name << "\"";
492: *part.string << CRLF HTTP_CONTENT_TYPE_CAPITALIZED ": " << part.r->mime_type_of(file_name);
1.22 misha 493: }
1.48 moko 494: *part.string << CRLF CRLF;
1.22 misha 495: }
496:
1.73 moko 497: static void form_string_value2part(HashStringValue::key_type key, const String& value, FormPart& part) {
1.28 misha 498: form_part_boundary_header(part, key);
1.48 moko 499: *part.string << value << CRLF;
1.22 misha 500: }
501:
1.73 moko 502: static void form_file_value2part(HashStringValue::key_type key, VFile& vfile, FormPart& part) {
1.28 misha 503: form_part_boundary_header(part, key, vfile.fields().get(name_name)->as_string().cstr());
1.48 moko 504: part.blocks+=FormPart::BinaryBlock(part.string, part.r);
505: part.blocks+=FormPart::BinaryBlock(vfile.value_ptr(), vfile.value_size());
506: part.string=new String();
507: *part.string << CRLF;
1.22 misha 508: }
509:
510: static void form_table_value2part(Table::element_type row, FormPart* part) {
511: form_string_value2part(part->info->key, *row->get(0), *part);
512: }
513:
1.73 moko 514: static void form_value2part(HashStringValue::key_type key, HashStringValue::value_type value, FormPart& part) {
1.22 misha 515: if(const String* svalue=value->get_string())
516: form_string_value2part(key, *svalue, part);
517: else if(Table* tvalue=value->get_table()) {
1.48 moko 518: Form_table_value2string_info info(key, *part.string);
1.22 misha 519: part.info = &info;
520: tvalue->for_each(form_table_value2part, &part);
1.33 misha 521: } else if(VFile* vfile=static_cast<VFile *>(value->as("file"))){
1.22 misha 522: form_file_value2part(key, *vfile, part);
523: } else
1.73 moko 524: throw Exception(PARSER_RUNTIME, new String(key, String::L_TAINTED), "is %s, " HTTP_FORM_NAME " option value can be string, table or file only", value->type());
1.22 misha 525: }
526:
527: const char* pa_form2string_multipart(HashStringValue& form, Request& r, const char* boundary, size_t& post_size){
1.48 moko 528: FormPart formpart(&r, boundary);
1.22 misha 529: form.for_each<FormPart&>(form_value2part, formpart);
1.48 moko 530: *formpart.string << "--" << boundary << "--";
531: // @todo: return binary blocks here to save memory in pa_internal_file_read_http
532: return formpart.post(post_size);
1.22 misha 533: }
534:
1.54 misha 535: // Set-Cookie: name=value; Domain=docs.foo.com; Path=/accounts; Expires=Wed, 13-Jan-2021 22:23:01 GMT; Secure; HttpOnly
536: static ArrayString* parse_cookie(Request& r, const String& cookie) {
1.64 moko 537: char *current=pa_strdup(cookie.cstr());
1.54 misha 538:
539: const String* name=0;
1.55 moko 540: const String* value=&String::Empty;
541: const String* expires=&String::Empty;
542: const String* max_age=&String::Empty;
543: const String* path=&String::Empty;
544: const String* domain=&String::Empty;
545: const String* httponly=&String::Empty;
546: const String* secure=&String::Empty;
1.54 misha 547:
548: bool first_pair=true;
549:
550: do {
551: if(char *meaning=search_stop(current, ';'))
552: if(char *attribute=search_stop(meaning, '=')) {
553: const String* sname=new String(unescape_chars(attribute, strlen(attribute), &r.charsets.source(), true/*don't convert '"' to space*/), String::L_TAINTED);
554: const String* smeaning=0;
555: if(meaning)
556: smeaning=new String(unescape_chars(meaning, strlen(meaning), &r.charsets.source(), true/*don't convert '"' to space*/), String::L_TAINTED);
557:
558: if(first_pair) {
559: // name + value
560: name=sname;
561: value=smeaning;
562: first_pair=false;
563: } else {
564: const String& slower=sname->change_case(r.charsets.source(), String::CC_LOWER);
565:
566: if(slower == "expires")
567: expires=smeaning;
568: else if(slower == "max-age")
569: max_age=smeaning;
570: else if(slower == "domain")
571: domain=smeaning;
572: else if(slower == "path")
573: path=smeaning;
574: else if(slower == "httponly")
575: httponly=new String("1", String::L_CLEAN);
576: else if(slower == "secure")
577: secure=new String("1", String::L_CLEAN);
578: else {
579: // todo@ ?
580: }
581: }
582: }
583: } while(current);
584:
585: if(!name)
586: return 0;
587:
588: ArrayString* result=new ArrayString(8);
589: *result+=name;
590: *result+=value;
591: *result+=expires;
592: *result+=max_age;
593: *result+=domain;
594: *result+=path;
595: *result+=httponly;
596: *result+=secure;
597:
598: return result;
599: }
600:
1.56 misha 601: Table* parse_cookies(Request& r, Table *cookies){
602: Table& result=*new Table(new Cookies_table_template_columns);
603:
604: for(Array_iterator<Table::element_type> i(*cookies); i.has_next(); )
605: if(ArrayString* row=parse_cookie(r, *i.next()->get(0)))
606: result+=row;
607:
608: return &result;
609: }
610:
1.75 moko 611: void tables_update(HashStringValue& tables, const String::Body name, const String& value){
1.72 moko 612: Table *table;
613: if(Value *valready=tables.get(name)) {
614: // second+ appearence
615: table=valready->get_table();
616: } else {
617: // first appearence
618: Table::columns_type columns=new ArrayString(1);
619: *columns+=new String("value");
620: table=new Table(columns);
621: tables.put(name, new VTable(table));
622: }
623: // this string becomes next row
624: ArrayString& row=*new ArrayString(1);
625: row+=&value;
626: *table+=&row;
627: }
628:
1.1 paf 629: /// @todo build .cookies field. use ^file.tables.SET-COOKIES.menu{ for now
1.72 moko 630: File_read_http_result pa_internal_file_read_http(Request& r, const String& file_spec, bool as_text, HashStringValue *options, bool transcode_text_result) {
1.1 paf 631: File_read_http_result result;
1.20 misha 632: char host[MAX_STRING];
1.66 moko 633: const char *idna_host;
1.1 paf 634: const char* uri;
1.49 moko 635: short port=80;
1.10 misha 636: const char* method="GET";
1.21 misha 637: bool method_is_get=true;
1.1 paf 638: HashStringValue* form=0;
639: int timeout_secs=2;
640: bool fail_on_status_ne_200=true;
1.12 misha 641: bool omit_post_charset=false;
1.1 paf 642: Value* vheaders=0;
1.10 misha 643: Value* vcookies=0;
1.11 misha 644: Value* vbody=0;
1.72 moko 645: Charset* asked_remote_charset=0;
1.58 moko 646: Charset* real_remote_charset=0;
1.1 paf 647: const char* user_cstr=0;
648: const char* password_cstr=0;
1.22 misha 649: const char* encode=0;
650: bool multipart=false;
1.1 paf 651:
652: if(options) {
653: int valid_options=pa_get_valid_file_options_count(*options);
654:
655: if(Value* vmethod=options->get(HTTP_METHOD_NAME)) {
656: valid_options++;
1.21 misha 657: method=vmethod->as_string().change_case(r.charsets.source(), String::CC_UPPER).cstr();
658: method_is_get=strcmp(method, "GET")==0;
1.1 paf 659: }
1.22 misha 660: if(Value* vencode=options->get(HTTP_FORM_ENCTYPE_NAME)) {
661: valid_options++;
662: encode=vencode->as_string().cstr();
663: }
1.1 paf 664: if(Value* vform=options->get(HTTP_FORM_NAME)) {
665: valid_options++;
666: form=vform->get_hash();
667: }
1.11 misha 668: if(vbody=options->get(HTTP_BODY_NAME)) {
1.1 paf 669: valid_options++;
670: }
671: if(Value* vtimeout=options->get(HTTP_TIMEOUT_NAME)) {
672: valid_options++;
673: timeout_secs=vtimeout->as_int();
674: }
1.11 misha 675: if(vheaders=options->get(HTTP_HEADERS_NAME)) {
1.1 paf 676: valid_options++;
677: }
1.11 misha 678: if(vcookies=options->get(HTTP_COOKIES_NAME)) {
1.10 misha 679: valid_options++;
680: }
1.1 paf 681: if(Value* vany_status=options->get(HTTP_ANY_STATUS_NAME)) {
682: valid_options++;
683: fail_on_status_ne_200=!vany_status->as_bool();
1.12 misha 684: }
1.20 misha 685: if(Value* vomit_post_charset=options->get(HTTP_OMIT_POST_CHARSET_NAME)){
1.12 misha 686: valid_options++;
687: omit_post_charset=vomit_post_charset->as_bool();
688: }
1.6 misha 689: if(Value* vcharset_name=options->get(PA_CHARSET_NAME)) {
1.77 moko 690: asked_remote_charset=&pa_charsets.get(vcharset_name->as_string());
1.58 moko 691: }
692: if(Value* vresponse_charset_name=options->get(PA_RESPONSE_CHARSET_NAME)) {
1.61 moko 693: valid_options++;
1.77 moko 694: real_remote_charset=&pa_charsets.get(vresponse_charset_name->as_string());
1.1 paf 695: }
696: if(Value* vuser=options->get(HTTP_USER)) {
697: valid_options++;
698: user_cstr=vuser->as_string().cstr();
699: }
700: if(Value* vpassword=options->get(HTTP_PASSWORD)) {
701: valid_options++;
702: password_cstr=vpassword->as_string().cstr();
703: }
704:
705: if(valid_options!=options->count())
1.46 misha 706: throw Exception(PARSER_RUNTIME, 0, CALLED_WITH_INVALID_OPTION);
1.1 paf 707: }
708: if(!asked_remote_charset) // defaulting to $request:charset
1.22 misha 709: asked_remote_charset=&(r.charsets).source();
710:
711: if(encode){
712: if(method_is_get)
1.72 moko 713: throw Exception(PARSER_RUNTIME, 0, "you can not use $." HTTP_FORM_ENCTYPE_NAME " option with method GET");
1.22 misha 714:
715: multipart=strcasecmp(encode, HTTP_CONTENT_TYPE_MULTIPART_FORMDATA)==0;
716:
717: if(!multipart && strcasecmp(encode, HTTP_CONTENT_TYPE_FORM_URLENCODED)!=0)
1.72 moko 718: throw Exception(PARSER_RUNTIME, 0, "$." HTTP_FORM_ENCTYPE_NAME " option value can be " HTTP_CONTENT_TYPE_FORM_URLENCODED " or " HTTP_CONTENT_TYPE_MULTIPART_FORMDATA " only");
1.22 misha 719: }
1.1 paf 720:
1.11 misha 721: if(vbody){
722: if(method_is_get)
1.72 moko 723: throw Exception(PARSER_RUNTIME, 0, "you can not use $." HTTP_BODY_NAME " option with method GET");
1.11 misha 724:
725: if(form)
1.72 moko 726: throw Exception(PARSER_RUNTIME, 0, "you can not use options $." HTTP_BODY_NAME " and $." HTTP_FORM_NAME " together");
1.11 misha 727: }
1.1 paf 728:
729: //preparing request
1.29 misha 730: String& connect_string=*new String(file_spec);
1.1 paf 731:
1.48 moko 732: const char* request;
733: size_t request_size;
1.1 paf 734: {
735: // influence URLencoding of tainted pieces to String::L_URI lang
1.22 misha 736: Temp_client_charset temp(r.charsets, *asked_remote_charset);
1.1 paf 737:
1.44 misha 738: const char* connect_string_cstr=connect_string.untaint_and_transcode_cstr(String::L_URI, &(r.charsets));
1.1 paf 739:
740: const char* current=connect_string_cstr;
741: if(strncmp(current, "http://", 7)!=0)
1.72 moko 742: throw Exception(PARSER_RUNTIME, &connect_string, "does not start with http://"); //never
1.1 paf 743: current+=7;
744:
745: strncpy(host, current, sizeof(host)-1); host[sizeof(host)-1]=0;
1.34 misha 746: char* host_uri=lsplit(host, '/');
747: uri=host_uri?current+(host_uri-1-host):"/";
748: char* port_cstr=lsplit(host, ':');
1.49 moko 749:
750: if (port_cstr){
751: char* error_pos=0;
752: port=(short)strtol(port_cstr, &error_pos, 10);
753: if(port==0 || *error_pos)
754: throw Exception(PARSER_RUNTIME, &connect_string, "invalid port number '%s'", port_cstr);
755: }
1.1 paf 756:
1.66 moko 757: idna_host=pa_idna_encode(host, r.charsets.source());
758:
1.11 misha 759: // making request head
1.1 paf 760: String head;
1.11 misha 761: head << method << " " << uri;
1.28 misha 762: if(method_is_get && form)
763: head << (strchr(uri, '?')!=0?"&":"?") << pa_form2string(*form, r.charsets);
1.11 misha 764:
1.66 moko 765: head <<" HTTP/1.0" CRLF "Host: "<< idna_host;
1.49 moko 766: if (port != 80)
767: head << ":" << port_cstr;
768: head << CRLF;
1.11 misha 769:
1.71 moko 770: char* boundary= multipart ? get_uuid_boundary() : 0;
1.22 misha 771:
1.35 misha 772: String user_headers;
773: bool user_agent_specified=false;
774: bool content_type_specified=false;
775: bool content_type_url_encoded=false;
776: if(vheaders && !vheaders->is_string()) { // allow empty
777: if(HashStringValue *headers=vheaders->get_hash()) {
778: Http_pass_header_info info={
779: &(r.charsets),
780: &user_headers,
781: &user_agent_specified,
782: &content_type_specified,
783: &content_type_url_encoded};
784: headers->for_each<Http_pass_header_info*>(http_pass_header, &info);
785: } else
1.72 moko 786: throw Exception(PARSER_RUNTIME, 0, "headers param must be hash");
1.35 misha 787: };
788:
1.48 moko 789: const char* request_body=0;
1.22 misha 790: size_t post_size=0;
791: if(form && !method_is_get) {
1.38 misha 792: head << "Content-Type: " << (multipart ? HTTP_CONTENT_TYPE_MULTIPART_FORMDATA : HTTP_CONTENT_TYPE_FORM_URLENCODED);
1.28 misha 793:
794: if(!omit_post_charset)
795: head << "; charset=" << asked_remote_charset->NAME_CSTR();
796:
1.22 misha 797: if(multipart) {
1.28 misha 798: head << "; boundary=" << boundary;
1.48 moko 799: request_body=pa_form2string_multipart(*form, r/*charsets & mime_type needed*/, boundary, post_size/*correct post_size returned here*/);
1.22 misha 800: } else {
1.48 moko 801: request_body=pa_form2string(*form, r.charsets);
802: post_size=strlen(request_body);
1.22 misha 803: }
1.28 misha 804: head << CRLF;
1.35 misha 805: } else if(vbody) {
1.38 misha 806: // $.body was specified
1.35 misha 807: if(content_type_url_encoded){
1.36 misha 808: // transcode + url-encode
1.48 moko 809: request_body=vbody->as_string().untaint_and_transcode_cstr(String::L_URI, &(r.charsets));
1.35 misha 810: } else {
1.36 misha 811: // content-type != application/x-www-form-urlencoded -> transcode only, don't url-encode!
1.72 moko 812: const String &sbody=vbody->as_string();
813: request_body=Charset::transcode(String::C(sbody.cstr(), sbody.length()), r.charsets.source(), *asked_remote_charset).str;
1.35 misha 814: }
1.48 moko 815: post_size=strlen(request_body);
1.1 paf 816: }
817:
818: // http://www.ietf.org/rfc/rfc2617.txt
819: if(const String* authorization_field_value=basic_authorization_field(user_cstr, password_cstr))
1.38 misha 820: head << "Authorization: " << *authorization_field_value << CRLF;
1.1 paf 821:
1.35 misha 822: head << user_headers;
823:
1.1 paf 824: if(!user_agent_specified) // defaulting
1.38 misha 825: head << "User-Agent: " DEFAULT_USER_AGENT CRLF;
1.1 paf 826:
1.12 misha 827: if(form && !method_is_get && content_type_specified) // POST + form + content-type was specified
1.72 moko 828: throw Exception(PARSER_RUNTIME, 0, "$.content-type can't be specified with method POST");
1.12 misha 829:
1.11 misha 830: if(vcookies && !vcookies->is_string()){ // allow empty
1.10 misha 831: if(HashStringValue* cookies=vcookies->get_hash()) {
1.37 misha 832: head << "Cookie: ";
1.35 misha 833: Http_pass_header_info info={&(r.charsets), &head, 0, 0, 0};
1.10 misha 834: cookies->for_each<Http_pass_header_info*>(http_pass_cookie, &info);
835: head << CRLF;
836: } else
1.72 moko 837: throw Exception(PARSER_RUNTIME, 0, "cookies param must be hash");
1.10 misha 838: }
839:
1.48 moko 840: if(request_body)
1.38 misha 841: head << "Content-Length: " << format(post_size, "%u") << CRLF;
1.48 moko 842:
843: head << CRLF;
844:
845: const char *request_head=head.untaint_and_transcode_cstr(String::L_URI, &(r.charsets));
1.1 paf 846:
1.48 moko 847: if(request_body){
848: size_t head_size = strlen(request_head);
849: request_size=post_size + head_size;
850: char *ptr=(char *)pa_malloc_atomic(request_size);
851: memcpy(ptr, request_head, head_size);
852: memcpy(ptr+head_size, request_body, post_size);
853: request=ptr;
854: } else {
855: request_size=strlen(request_head);
856: request=request_head;
857: }
1.1 paf 858: }
859:
1.78 moko 860:
1.97 moko 861: HTTP_response response;
1.22 misha 862:
1.28 misha 863: // sending request
1.95 moko 864: int status_code;
865: ALTER_EXCEPTION_SOURCE(status_code=http_request(response, idna_host, port, request, request_size, timeout_secs, fail_on_status_ne_200), &connect_string);
1.78 moko 866:
1.72 moko 867: // processing results
1.78 moko 868: char* raw_body=response.buf + response.body_offset;
869: size_t raw_body_size=response.length - response.body_offset;
870:
1.1 paf 871: result.headers=new HashStringValue;
872: VHash* vtables=new VHash;
1.72 moko 873: result.headers->put("tables", vtables);
874:
1.78 moko 875: if (!real_remote_charset && !response.headers.content_type.is_empty())
876: real_remote_charset=detect_charset(response.headers.content_type.cstr());
1.1 paf 877:
1.72 moko 878: if(as_text)
1.77 moko 879: real_remote_charset=pa_charsets.checkBOM(raw_body, raw_body_size, real_remote_charset);
1.72 moko 880:
881: if (!real_remote_charset)
882: real_remote_charset=asked_remote_charset; // never null
883:
1.85 moko 884: for(Array_iterator<HTTP_Headers::Header> i(response.headers.headers); i.has_next(); ){
885: HTTP_Headers::Header header=i.next();
1.72 moko 886:
887: header.transcode(*real_remote_charset, r.charsets.source());
888:
889: String &header_value=*new String(header.value, String::L_TAINTED);
890:
891: tables_update(vtables->hash(), header.name, header_value);
892: result.headers->put(header.name, new VString(header_value));
1.16 misha 893: }
894:
1.72 moko 895: // filling $.cookies
1.89 moko 896: if(vcookies=vtables->hash().get("SET-COOKIE"))
1.72 moko 897: result.headers->put(HTTP_COOKIES_NAME, new VTable(parse_cookies(r, vcookies->get_table())));
898:
1.1 paf 899: // output response
900: String::C real_body=String::C(raw_body, raw_body_size);
1.16 misha 901:
902: if(as_text && transcode_text_result && raw_body_size) { // raw_body_size must be checked because transcode returns CONST string in case length==0, which contradicts hacking few lines below
1.22 misha 903: real_body=Charset::transcode(real_body, *real_remote_charset, r.charsets.source());
1.1 paf 904: }
905:
906: result.str=const_cast<char *>(real_body.str); // hacking a little
907: result.length=real_body.length;
1.16 misha 908:
1.22 misha 909: if(as_text && result.length)
910: fix_line_breaks(result.str, result.length);
911:
1.1 paf 912: result.headers->put(file_status_name, new VInt(status_code));
1.16 misha 913:
1.1 paf 914: return result;
915: }
1.84 moko 916:
917: /* ********************** httpd *************************** */
918:
1.111 moko 919: #ifdef HTTPD_DEBUG
920: void pa_log(const char* fmt, ...);
921: #define LOG(action) action
922: #else
923: #define LOG(action)
924: #endif
925:
1.100 moko 926: enum EscapeState {
927: Initial,
928: Default,
929: EscapeFirst,
930: EscapeSecond
931: };
932:
933: static bool check_uri(const char *uri){
934: EscapeState state=Initial;
935: uint escapedValue;
936:
937: const char *pattern="/../";
938: const char *pos=pattern;
939:
940: while(*uri){
941: uchar c=(uchar)*(uri++);
942: switch(state) {
943: case Initial:
944: if(c!='/')
945: return false;
946: state=Default;
947: break;
948: case Default:
949: if(c=='%'){
950: state=EscapeFirst;
951: continue;
952: }
953: if(c=='?')
954: return true;
955: break;
956: case EscapeFirst:
957: if(isxdigit(c)){
958: state=EscapeSecond;
959: escapedValue=hex_value[c] << 4;
960: continue;
961: }
962: return false;
963: case EscapeSecond:
964: if(isxdigit(c)){
965: state=Default;
1.105 moko 966: c=(uchar)(escapedValue + hex_value[c]);
1.100 moko 967:
968: // implementing Apache AllowEncodedSlashes Off just in case
969: if(c=='/' || c=='\\')
970: return false;
971:
972: break;
973: }
974: return false;
975: }
976:
977: if(c==*pos || c=='\\' && *pos=='/'){
978: if(!*(++pos))
979: return false;
980: } else {
981: pos=pattern;
982: }
983: }
984: return true;
985: }
986:
1.84 moko 987: class HTTPD_request : public HTTP_response {
988: public:
989: const char *method;
990: const char *uri;
991:
1.97 moko 992: HTTPD_request() : HTTP_response(), method(NULL), uri(NULL){};
1.84 moko 993:
1.104 moko 994: ssize_t pa_recv(int sockfd, char *buf, size_t len);
1.103 moko 995:
996: bool read(int sock, size_t size){
997: if(length + size > buf_size)
998: resize(buf_size * 2 + size);
999: ssize_t received_size=pa_recv(sock, buf + length, size);
1000: if(received_size == 0)
1001: return false;
1002: if(received_size < 0) {
1003: if(int no = pa_socks_errno())
1.111 moko 1004: throw Exception("httpd.read", 0, "error receiving request: %s (%d)", pa_socks_strerr(no), no);
1.103 moko 1005: return false;
1006: }
1007: length+=received_size;
1008: buf[length]='\0';
1009: return true;
1010: }
1011:
1.84 moko 1012: const char *extract_method(char *method_line){
1013: char* uri_start = strchr(method_line, ' ');
1014:
1015: if(!uri_start || uri_start == method_line)
1016: return NULL;
1017:
1018: char* uri_end=strchr(uri_start+1, ' ');
1019:
1020: if(!uri_end || uri_end == uri_start+1)
1021: return NULL;
1022:
1023: uri=pa_strdup(uri_start+1, uri_end-uri_start-1);
1.100 moko 1024: if(!check_uri(uri))
1025: throw Exception("httpd.request", 0, "invalid uri '%s'", uri);
1026:
1.84 moko 1027: return str_upper(method_line, uri_start-method_line);
1028: }
1029:
1.103 moko 1030:
1.110 moko 1031: bool read_header(int);
1.87 moko 1032: size_t read_post(int, char *, size_t);
1.84 moko 1033: };
1034:
1035: enum HTTPD_request_state {
1036: HTTPD_METHOD,
1037: HTTPD_HEADERS
1038: };
1039:
1.104 moko 1040: ssize_t HTTPD_request::pa_recv(int sockfd, char *buffer, size_t len){
1.111 moko 1041: LOG(pa_log("httpd [%d] recv %d appending to %d ...", sockfd, len, length));
1.107 moko 1042:
1043: #ifdef PA_USE_ALARM
1.118 ! moko 1044: if(PA_NO_THREADS) signal(SIGALRM, timeout_handler);
! 1045: if(PA_NO_THREADS && sigsetjmp(timeout_env, 1)) {
1.111 moko 1046: LOG(pa_log("httpd [%d] recv got %d sec timeout", sockfd, pa_httpd_timeout));
1047: if(length) // timeout on "void" connection is normal
1048: throw Exception("httpd.timeout", 0, "timeout occurred while receiving request");
1049: return 0;
1.103 moko 1050: } else
1.107 moko 1051: #endif
1.103 moko 1052: {
1.107 moko 1053: ALARM(pa_httpd_timeout);
1.104 moko 1054: ssize_t result=recv(sockfd, buffer, len, 0);
1.107 moko 1055: ALARM(0);
1.111 moko 1056: LOG(pa_log("httpd [%d] recv got %d bytes", sockfd, result));
1.112 moko 1057: LOG(pa_log("httpd [%d] %s", sockfd, buffer));
1.103 moko 1058: return result;
1059: }
1060: }
1061:
1.115 moko 1062: static bool valid_http_method(const char * method){
1063: return method && (
1064: !strcmp(method, "GET") ||
1065: !strcmp(method, "HEAD") ||
1066: !strcmp(method, "POST") ||
1067: !strcmp(method, "PUT") ||
1068: !strcmp(method, "DELETE") ||
1069: !strcmp(method, "CONNECT") ||
1070: !strcmp(method, "OPTIONS") ||
1071: !strcmp(method, "TRACE") ||
1072: !strcmp(method, "PATCH")
1073: );
1074: }
1075:
1.110 moko 1076: bool HTTPD_request::read_header(int sock) {
1.84 moko 1077: enum HTTPD_request_state state = HTTPD_METHOD;
1078:
1079: size_t chunk_size = 0x400*4;
1080: resize(chunk_size);
1081:
1082: while(read(sock, chunk_size)){
1083: switch(state){
1084: case HTTPD_METHOD: {
1085: size_t method_size = first_line();
1086: if(!method_size)
1087: break;
1088:
1089: char *method_line = pa_strdup(buf, method_size);
1090: method = extract_method(method_line);
1091:
1.115 moko 1092: if(!valid_http_method(method))
1.84 moko 1093: throw Exception("httpd.method", new String(method ? method : method_line), "invalid request method");
1094: state = HTTPD_HEADERS;
1095: }
1096:
1097: case HTTPD_HEADERS: {
1098: if(!body_start())
1099: break;
1100:
1101: parse_headers();
1.110 moko 1102: return true;
1.84 moko 1103: }
1104: }
1105: }
1106:
1.111 moko 1107: if(!length){ // browsers open connections in advance and they will be empty unless user requests more pages
1108: LOG(pa_log("httpd [%d] void request", sock));
1.110 moko 1109: return false;
1.111 moko 1110: }
1.110 moko 1111:
1.84 moko 1112: if(state == HTTPD_METHOD)
1113: throw Exception("httpd.request", 0, "bad request from host - no method found (size=%u)", length);
1114:
1115: if(state == HTTPD_HEADERS){
1116: parse_headers();
1117: body_offset=length;
1118: }
1.110 moko 1119:
1120: return true;
1.84 moko 1121: }
1122:
1.87 moko 1123: size_t HTTPD_request::read_post(int sock, char *body, size_t max_bytes) {
1124: size_t total_read = min(length - body_offset, max_bytes);
1.98 moko 1125: memcpy(body, buf + body_offset, total_read);
1.87 moko 1126:
1127: while (total_read < max_bytes){
1.103 moko 1128: ssize_t received_size = pa_recv(sock, body + total_read, max_bytes - total_read);
1.87 moko 1129: if(received_size == 0)
1130: return total_read;
1131: if(received_size < 0) {
1132: if(int no = pa_socks_errno())
1.111 moko 1133: throw Exception("httpd.read", new String(uri), "error receiving request body: %s (%d)", pa_socks_strerr(no), no);
1.87 moko 1134: return total_read;
1135: }
1136: total_read += received_size;
1137: }
1138: return total_read;
1139: }
1140:
1.84 moko 1141: /* ********************************************************** */
1142:
1.85 moko 1143: Array<HTTP_Headers::Header> &HTTPD_Connection::headers() {
1.84 moko 1144: return request->headers.headers;
1145: }
1146:
1147: const char *HTTPD_Connection::method() {
1148: return request->method;
1149: }
1150:
1151: const char *HTTPD_Connection::uri() {
1152: return request->uri;
1153: }
1154:
1155: const char *HTTPD_Connection::content_type() {
1156: return request->headers.content_type.cstr();
1157: }
1158:
1159: uint64_t HTTPD_Connection::content_length(){
1160: return request->headers.content_length;
1161: }
1162:
1.110 moko 1163: bool HTTPD_Connection::read_header(){
1.84 moko 1164: request = new HTTPD_request();
1.111 moko 1165: bool result = request->read_header(sock);
1166: LOG(if(result){
1167: pa_log("httpd [%d] got %s \"%s\"", sock, method(), uri());
1168: })
1169: return result;
1.84 moko 1170: }
1171:
1.87 moko 1172: size_t HTTPD_Connection::read_post(char *body, size_t max_bytes) {
1173: return request->read_post(sock, body, max_bytes);
1174: }
1175:
1.90 moko 1176: size_t HTTPD_Connection::send_body(const void *buf, size_t size) {
1.112 moko 1177: LOG(pa_log("httpd [%d] response %d bytes", sock, size));
1178: LOG(pa_log("httpd [%d] %s", sock, buf));
1.91 moko 1179: if(send(sock, (const char*)buf, size, 0) != (ssize_t)size) {
1.90 moko 1180: int no=pa_socks_errno();
1.111 moko 1181: throw Exception("httpd.write", 0, "error sending response: %s (%d)", pa_socks_strerr(no), no);
1.90 moko 1182: }
1183: return size;
1184: }
1185:
1.93 moko 1186: HTTPD_Connection::~HTTPD_Connection(){
1.111 moko 1187: if(sock != -1){
1188: LOG(pa_log("httpd [%d] closed", sock));
1.93 moko 1189: closesocket(sock);
1.111 moko 1190: }
1.93 moko 1191: }
1192:
1193: static int sock_ready(int fd,int operation,int timeout_value){
1194: struct timeval timeout = {0, timeout_value * 1000};
1195: fd_set fds;
1196: FD_ZERO(&fds);
1197: FD_SET(fd, &fds);
1198: switch (operation){
1199: case 0: return select(fd + 1, &fds, NULL, NULL, &timeout)>0; /* read */
1200: case 1: return select(fd + 1, NULL, &fds, NULL, &timeout)>0; /* write */
1201: default: return select(fd + 1, &fds, &fds, NULL, &timeout)>0; /* both */
1202: }
1203: }
1204:
1205: bool HTTPD_Connection::accept(int server_sock, int timeout_value) {
1206: int ready = sock_ready(server_sock, 0, timeout_value);
1207: if (ready < 0) {
1208: int no=pa_socks_errno();
1209: if(no == EINTR)
1210: return false;
1211: throw Exception("httpd.accept", 0, "error waiting for connection: %s (%d)", pa_socks_strerr(no), no);
1212: }
1213: if (ready == 0)
1214: return false; /* Timeout */
1215:
1216: struct sockaddr_in addr;
1217: socklen_t sock_addr_len = sizeof(struct sockaddr_in);
1218: memset(&addr, 0, sock_addr_len);
1219:
1220: sock = ::accept(server_sock, (struct sockaddr *)&addr, &sock_addr_len);
1221: if(server_sock == -1){
1222: int no=pa_socks_errno();
1223: throw Exception("httpd.accept", 0, "error accepting connection: %s (%d)", pa_socks_strerr(no), no);
1224: }
1225:
1226: remote_addr = pa_strdup(inet_ntoa(addr.sin_addr));
1.111 moko 1227: LOG(pa_log("httpd [%d] accepted from %s", sock, remote_addr));
1.93 moko 1228: return true;
1229: }
1.84 moko 1230:
1.107 moko 1231: HTTPD_Server::HTTPD_MODE HTTPD_Server::mode = HTTPD_Server::SEQUENTIAL;
1.114 moko 1232: const char *HTTPD_Server::port=NULL;
1.106 moko 1233:
1.108 moko 1234: void HTTPD_Server::set_mode(const String &value){
1235: if(value == "sequental") mode = SEQUENTIAL;
1.113 moko 1236: #ifdef HAVE_TLS
1.108 moko 1237: else if (value == "threaded") mode = MULTITHREADED;
1.113 moko 1238: #endif
1.108 moko 1239: #ifdef _MSC_VER
1.117 moko 1240: else throw Exception("httpd.mode", &value, "$MAIN:HTTPD.mode must be 'sequental' or 'threaded'");
1.108 moko 1241: #else
1242: else if (value == "parallel") mode = PARALLEL;
1.117 moko 1243: else throw Exception("httpd.mode", &value, "$MAIN:HTTPD.mode must be 'sequental', 'parallel' or 'threaded'");
1.108 moko 1244: #endif
1245: }
1246:
1.86 moko 1247: int HTTPD_Server::bind(const char *host_port){
1.84 moko 1248: struct sockaddr_in me;
1249:
1.114 moko 1250: port = strchr(host_port, ':');
1.86 moko 1251: const char *host = NULL;
1.116 moko 1252: if(port){
1.114 moko 1253: if(port > host_port)
1254: host = pa_strdup(host_port, port - host_port);
1.86 moko 1255: port += 1;
1256: } else {
1257: port = host_port;
1258: }
1259:
1.105 moko 1260: if(!set_addr(&me, host, (short)pa_atoui(port))){
1.84 moko 1261: if (host)
1262: throw Exception("httpd.bind", 0, "can not resolve hostname \"%s\"", host);
1263: me.sin_addr.s_addr=INADDR_ANY;
1264: }
1265:
1266: int sock = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP/*0*/);
1267:
1268: if(sock < 0){
1269: int no=pa_socks_errno();
1270: throw Exception("httpd.bind", 0, "can not make socket: %s (%d)", pa_socks_strerr(no), no);
1271: }
1272:
1.93 moko 1273: static int sock_on = 1;
1274:
1.84 moko 1275: if (setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (char *)&sock_on, sizeof(sock_on)) ||
1276: setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, (char *)&sock_on, sizeof(sock_on)) ||
1277: ::bind(sock, (struct sockaddr*)&me, sizeof(me)) ||
1278: listen(sock, 16)) {
1.89 moko 1279: closesocket(sock);
1.84 moko 1280: int no = pa_socks_errno();
1281: throw Exception("httpd.bind", 0, "can not bind socket: %s (%d)", pa_socks_strerr(no), no);
1282: }
1283: return sock;
1284: }
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